Spinning method and apparatus for manufacturing yarn from textile fibers



Aug. 4,1970 MAS K T ETAL 3,523,300

SPINNING METHOD D PARATUS FOR MANUFACTURING YARN FROM TEXTILE FIBERSFiled Aug. 16, 1967 19 Sheets-Sheet l a x N v y: '8]

Aug; 4, 1970 MASAAK] TABATA ET AL 3,523,300

SPINNING METHOD AND APPARATUS FOR MANUFACTURING YARN FROM TEXTILE FIBERSFiled Aug. 16, 1967 19 Sheets-Sheet 2 MASAAKI TABATA ET AL 3,523,300SPINNING METHOD AND APPARATUS FOR MANUFACTURING YARN FROM TEXTILE FIBERS16. 1967 19 Sheets-Sheet 3 .m 9 1 4 m A Filed Aug.

Aug-4,1970 MAsAAK| TABATA ETAL 3,523,300

SPINNING METHOD AND APPARATUS FOR MANUFACTURING YARN FROM TEXTILE FIBERSFiled M516, 1967 19 Sheets-Sheet 4- (XlO mg) DRAWING FORCE -'I5-I'o-'5 55 I6 I5 /m) INSIDE ZONE INSIDE ZONE OF 0 SUPPLY i DELIVERY PIPE PIPEAug. 4, 1970 MASAAKl TABATA ETAL 3,523,300 SPINNING METHOD AND APPARATUSFOR MANUFACTURING YARN FROM TEXTILE FIBERS Filed Aug. 16, 1967 19Sheets-Sheet 6 g- 1970 MASAAKI TABA SPINNING METHOD AND APPARAT YARNFROM TEXTILE Filed Aug. 16, 1967 AL 3,523,300 R MANUFACTURING ERS TA ETUS F0 FIB l9 Sheets-Sheet 6 Filed Aug. 16'. 1967 x- 1970 MASAAKI TABATAETAL 3,523,300

SPINNING METHOD AND APFARATUS FOR MANUFAC'! URING YARN-FRO" TEXTILEFIBERS 19 Sheets-Sheet 7 Aug 4, 1970 MASAAKI TABATA ET AL 3,

SPINNING METHOD AND APPARATUS FOR MANUFACTURING YARN FROM TEXTILE FIBERSl9 Sheets-Sheet 8 Filed Aug. 16, 1967 Filed Aug. 16, 1967 Aug.- 4, 1970MASAAKII TABATA L SPINNING METHOD AND APPARATUS FOR MANUFAC IURING l9Sheets-Sheet 9 F/g /7A Hg. /75 H9 /7C ACTUAL THICK- ACTUAL NUMBER NESSOF A OF TWISTS IM- SPINNING YARN A PARTED TO THE 70 YARN F f H- B P A 1g A}; 72 E g A B *A B l I J 1' ifll 1 A b l J I J (DESIGNED THICK-@5535) NUMBER 66 NESS OF THE OF TWISTS TO BE h SPINNING YARN h IMPARTEDTO'THE YARN g- 1970 MASAAKI TABATA ETAL 3,523,300

SPINNING METHOD AND APPARATUS FOR MANUFACTURING YARN FROM TEXTILE FIBERSl9 Sheets-Sheet 10 Filed Aug. 16, 1967 9 w ww/ /\//A 1 W 7/ W illll r P-IJ/ r g 1 $747 nn P/II:

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3,523,300 srmume METHOD AND APPARATUS FOR MANUFACTURING YARN FROMTEXTILE FIBERS Filed Aug. 16, 1967 19 Sheets-Sheet 11 Niii Aug. 4,' 1970MASAAKI BATA ETA!- 3,523,300

SPINNING METHOD AND A RA -FOR MANUFACTURING YARN FROM TEXTI FIBERS FiledAug. 15, 1967 19 She ets-Sheet 12 Aug. 4, 1970 MASAAKl TABATA ET AL3,523,300

SPINNING METHOD AND APPARATUS FOR MANUFACTURING YARN FROM TEXTILE FIBERSFiled Aug. 16, 1967 l9 Sheets-Sheet 15 g-' 1970 MASAAKI TABATA EI'AL3,523,300 7 SPINNING METHOD AND APPARATUS FOR MANUFACTURING YARN FROMTEXTILE FIBERS l9 Sheets-Sheet 14 Filed Aug. 16, 1967 Aug. 4, 1970 Y MASKl TABA ETAL SPINNING ME D PPA 3 523,300 RAT FOR MANUFACTURINg TEXTILEFIBERS THO D A YARN FROM 19 Sheets-Sheet 15 Filed Aug. 16, 1967 Aug. 4,1970 MASAAKI TABAT-A SPINNING METHOD AND APPARATUS F YARN FROM TEXTILEFIBE Filed Aug. 16, 1967 F/g. 30A

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19 Sheets-Sheet 16 UTIIIIIIIIIII M g- 1-970 MASAAKI TABATA ET AL3,523,300

SPINNING METHOD AND APPARATUS FOR MANUFACTJRING YARN FROM TEXTILE FIBERSFiled Aug. 16, 1967 19 Sheets-Sheet 1'7 Aug. 4, 1970 MASA-AKI TABATAETAL 3,523,300

SPINNING METHOD AND APPARATUS FOR MANUFACTURING YARN FROM TEXTILE FIBERSFiled Aug. 16, 1967 I 19 Sheets-Sheet 18 +IOO II\ A I\I\ A IR A /I Z A AA E V v W 1/ W I O IO 4'O 50 6O 7O 8O 9'0 IOOIT) LENGTH OF YARN (Om)VARIATION OF THICKNESS .OF

Hg 34 YARN (CONVENTIONAL) +IOO @ m r\ z O A VA M r\ MVIN A II v V 5 vv wV W W v K E o 0 IO 20 3040506070809OIOOIIO LENGTH OF YARN (cm) VARIATIONOF THICKNESS OF Hg. 35 YARN (PRESENT INvENTIONI I25IO205OIOO I 2 5 IO 20I00 WAVE LENGTH (cm) SPECTROGRAM OF VARIATION OF THICKNESS OF YARN(PRESENT INVENTION) Filed Aug. 16, 1967 Aug. 4, 1970 A MASAAK| BA ET AL3,523,300

SPINNING METHOD AND A RAT 'FOR MANUFACTURING YARN FROM TEXTILE FIBERS 19Shets-Sheet 19 United States Patent 3,523,300 SPINNING METHOD ANDAPPARATUS FOR MANUFACTURING YARN FROM TEXTILE FIBERS Masaaki Tabata,Kozo Susuami, and Hiroshi Edagawa,

Otsu-shi, and Kunio Shinkai, Handa-shi, Japan, assignors to TorayIndustries, Inc., Tokyo, Japan, a company of Japan, and Howa Machinery,Ltd., Nagoyashi, Aichi-ken, Japan, a company of Japan Filed Aug. 16,1967, Ser. No. 660,990 Claims priority, application Japan, Aug. 18,1966, ll/53,905; Mar. 22, 1967, 42/17,418; Apr. 19, 1967, 42/24,976; May22, 1967 (utility model), 42/42,452; June 5, 1967, 42/35,472; July 4,1967, 42/42,559; July 12, 1967, 42/44,378, 42/44,380, 42/44,381,42/44,382, 42/44,383 (utility model), 42/ 59,706

Int. Cl. D01h 7/00, ]/24 US. Cl. 57-58.91

ABSTRACT OF THE DISCLOSURE An improved spinning method and its apparatusutilizing pneumatics and centrifugal force. The bundle of fibersdelivered from a supply source is shredded in a supply conduit of thefeeding means by a fluid stream caused by compressed air, and theshredded fibers are deposited continuously on a rotating receivingsurface of a rotor and cohered on the receiving surface, then thecohered fibers in a circular bundle form are displaced to a collectingsurface having larger radius than the receiving surface by thecentrifugal force caused by the high speed rotation of the rotor and acontinuous bundle of fibers is taken off from the collecting surface anddrawn out from the outlet of the rotor while turning the bundle offibers by the twisting action of the rotor, and thereafter the twistedbundle of fibers, that is the produced yarn, is packaged by a suitablewinding mechanism. To control the above-mentioned twisting, certaintwist control means attached to the rotor are provided.

The present invention relates to an improved spinning method andapparatus for manufacturing yarn from textile fibers, more particularlyrelates to a practical spinning method and apparatus utilizingpneumatics and centrifugal force suitable for mass-production.

Many proposals have been made on the open-end type spinning system. Asit has been clearly shown by the process of open-end spinning system asdisclosed in Czechoslovakian Pat. No. 91,208 issued in 1958, thatgenerally the system is characterized by separating the twisting and thetaking-up operations. Aftershredding the continuous structure composedof numerous fibrous materials, they are bundled again to form a newcontinuous structure by means of a rotating member for accumulating theindividual fibers and twisting this structure.

Among these prior open-end spinning systems, a spinning method, whereinthe shredded individual fibers of the bundle of fibers are conveyed ontothe inside wall of the spinning rotor by utilizing suction air, andtaken out through an aperture disposed to the central bottom portion ofthe spinning rotor, while providing twisting operation, is well known.But this method has many drawbacks such as large power consumption,inferior quality of the yarn produced, limitation in spinning speedcaused by the mechanical features of this spinning system, high degreeof twisting required for preventing yarn breakage and the difiiculty inmanual operation required at the time of starting the machine.Consequently, it is still difficult to utilize the prior type ofopen-end spinning method in a practical production process.

The principal object of the present invention is to provide an improvedspinning method and apparatus utiliz- 29 Claims ice ing pneumatics andcentrifugal force which are accompanied by high production speed andstable spinning condition for eliminating the above-mentioned drawbacksof the prior open-end spinning methods.

Another object of the present invention is to provide an improvedspinning method and apparatus which can produce improved quality ofyarns at high production speed and stable spinning condition bycontrolling the tension and the twist of the spinning yarns.

Still another object of the present invention is to provide a spinningrotor which can produce yarns having superior properties, beautifulappearance and high bundling property in the spinning method andapparatus wherein pneumatics and centrifugal force are utilized.

A further object of the present invention is to provide a method ofyarns which can produce yarns of superior qualities under a wide rangeof spinning conditions with simple mechanisms and small powerconsumption in the spinning method and apparatus wherein pneumatics andcentrifugal force are utilized.

Further features and advantages of the present invention will beapparent from the ensuing description with reference to the accompanyingdrawings to which however the scope of the invention is no way limited.

FIG. 1 is a perspective view of an embodiment of the spinning apparatusof the present invention,

FIG. 2 is an explanatory skeleton sketch of the spinning apparatus shownin FIG. 1,

FIG. 3 is an explanatory perspective view showing the twisting mechanismof the spinning apparatus of the present invention,

FIGS. 4 and 5 are sectional side views of the main portions of thefeeding device for feeding fibers used for the spinning apparatus of thepresent invention,

FIGS. 6A, 6B, and 6C are explanatory sectional views of severalembodiments of the conduit of the feeding device according to theinvention,

FIG. 7 is an explanatory diagram for showing the relation between theconduit of the feeding device of the apparatus of the invention and thedrawing-out force of the fibers from the conduit.

FIGS. 8, 9 and 10 are sectional side views of the main part of anotherembodiment of the feeding device of the present invention,

FIG. 11A is an explanatory sectional side view of the rotor of thepresent invention,

FIG. 11B is a sectional plan, taking along line XIB- XIB, of the rotorshown in FIG. 11A,

FIGS. 12, 13 and 14 are sectional front and side views, respectively, ofstill other embodiments of the feeding device of the present invention,a

FIG. 15 is an explanatory side sectional view of an embodiment of therotor of the invention, for showing structure,

FIGS. 16A, 16B, 16C and 16D are side sectional views of anotherembodiment of the rotor used for the spinning apparatus of the presentinvention,

FIGS. 17A and 17C are explanatory drawings for showing the structure ofthe twist controller for controlling the twisting operation on the yarnproduced by the rotor shown in the proceeding drawings and its operationmechanism, respectively, while FIG. 17B is an explanatory drawingconcerning the variation of thickness of the twisted yarn,

FIG. 18 is an explanatory sectional side views of another embodiment ofthe rotor attached certain twist controller, according to the invention,

FIGS. 19A, 19B and are explanatory sectional side views of anotherembodiment of the twist controller,

FIGS. 20A and 20B are explanatory sectional side views of certain twistcontroller of the invention,

